The last of the old-style Volvos, the C70 convertible is finally being replaced by a s*xy new sun seeker that will make its debut at September's Frankfurt auto show. The new C70 convertible-with a retractable hard top rather than a traditional soft top-will be powered by the same 218-hp, 2.5-liter, five-cylinder turbo found in the S40 sedan and the V50 wagon, cars with which it will share a platform. The normally aspirated, 168-hp 2.4-liter and all-wheel drive are unlikely, however.